Again, there is no way for ANY program to know if you entered the wrong information.
In answer to your question, you would need to download your 2014 tax file, purchase the 2014 CD/downloaded software, and go through the step-by-step questions to see what is entered.
A POSSIBLE alternative is to print out ALL worksheets to see the information, and what you entered for the W-2.
At any rate, it is pretty obvious to all of us that your original return is wrong, and that you will owe the tax. If you are able to convince TurboTax that the program was faulty, they would pay for any penalties and interest, but you would still owe the tax due.
Critter already provided you with a link for how to contact TurboTax about an audit letter. VolvoGirl posted a link for hwo to call Customer Support. This is just a user-to-user forum, and obviously we aren't helping you, so you should contact the audit site and/or Customer Support.
